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Texas Instruments TPS62160DGKR
- Part No.:
- TPS62160DGKR
- Manufacturer:
- Texas Instruments
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TPS62160DGKR.pdf
- Description:
- IC REG BUCK ADJ 1A 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,541
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Product details
Overview
TPS62160DGKR from Texas Instruments is a synchronous step-down DC/DC converter with DCS-Control™ topology, designed for high-power-density POL applications. It operates from 3 V to 17 V input, delivers up to 1 A continuous output current, supports adjustable output voltage (0.9 V to 6 V), and features power good (PG) signaling and 100% duty-cycle operation for battery-end-of-life support - used in mobile PCs, Li-ion-powered embedded systems, and 12-V rail conversion.
For engineers reviewing the TPS62160DGKR datasheet, TPS62160DGKR pinout, TPS62160DGKR application, or TPS62160DGKR equivalent, key selection criteria include its 2.25 MHz switching frequency, 17 µA quiescent current in power save mode, seamless PWM-to-PSM transition, thermal shutdown at 160°C, and compatibility with low-ESR ceramic capacitors (e.g., 22 µF output).
Technical Context
The TPS62160DGKR implements DCS-Control™ - a hybrid regulation topology combining fast AC response via direct output-voltage sensing with stable DC regulation through an internal error amplifier and compensated feedback loop. Its control architecture enables immediate transient response while maintaining ±3% output accuracy across line and load variations.
It integrates dual MOSFET power switches (300 mΩ high-side, 120 mΩ low-side at VIN ≥6 V), undervoltage lockout (2.7 V threshold with 180 mV hysteresis), open-drain PG output with 92–98% rising threshold, and soft-start with ~25 mV/µs output ramp. Operation spans PWM mode (CCM, ~2.25 MHz) and power save mode (frequency scaling down to light loads), all within a single control block.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3 V to 17 V - supports single/dual Li-ion batteries and standard 12-V intermediate rails without external pre-regulation. |
| Output Current | Up to 1 A continuous - sufficient for core logic, FPGA I/O, or microcontroller subsystems in space-constrained designs. |
| Switching Frequency | Typically 2.25 MHz - enables use of compact 2.2 µH inductors and minimizes output ripple without requiring large bulk capacitance. |
| Quiescent Current | 17 µA typical in power save mode - extends battery runtime in always-on or low-duty-cycle IoT and portable devices. |
| Output Voltage Range | Adjustable 0.9 V to 6 V - configured via external resistor divider on FB pin; supports dynamic voltage scaling and multi-rail sequencing. |
| Thermal Shutdown | 160°C junction temperature with 20°C hysteresis - protects against sustained overload or poor PCB thermal design without latch-off. |
| Power Good Output | Open-drain PG with 92–98% VOUT rising threshold - provides reliable system-level power sequencing and fault indication. |
Pinout & Package
TPS62160DGKR is housed in an 8-pin VSSOP package (3.00 mm × 3.00 mm), with exposed pad not present - optimized for moderate-power density and reflow-compatible assembly. Thermal performance relies on PCB copper area connected to AGND and PGND pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PGND (Pin 1) | Power ground return | Low-impedance path for high-frequency switch current; must be routed separately from AGND and tied at single point near IC. |
| VIN (Pin 2) | Main input supply | Accepts 3–17 V; requires local 10 µF ceramic capacitor close to pin to suppress high-frequency noise and support peak current demands. |
| EN (Pin 3) | Enable control input | Active-high logic; internal 400 kΩ pull-down ensures safe default-off state; enables precise power rail sequencing when driven by another regulator's PG. |
| AGND (Pin 4) | Analog ground reference | Reference for FB, VOS, and internal error amplifier; must be isolated from noisy PGND until joined at single star point under IC. |
| FB (Pin 5) | Feedback input | Connects to resistive divider from VOUT; sets output voltage as VOUT = 0.8 V × (1 + R1/R2); leakage <400 nA preserves accuracy. |
| VOS (Pin 6) | Voltage sense and control loop input | Direct connection to output capacitor; improves regulation accuracy and transient response by sensing true output voltage, not FB node. |
| SW (Pin 7) | Switch node | Drives external 2.2 µH inductor; carries high dv/dt square wave; requires minimal trace length and guard ring to reduce EMI. |
| PG (Pin 8) | Power good open-drain output | Signals valid regulation (high impedance when off, pulled low if VOUT drops below 92% nominal); requires external pull-up to ≤7 V. |
Key Features
| Feature | Design Value |
|---|---|
| DCS-Control™ topology | Combines fast AC transient response (via direct VOUT sensing at VOS) with stable DC regulation (via FB error amplifier), eliminating need for external compensation. |
| Seamless PWM-to-power-save transition | No output voltage glitch or audible noise during mode change; maintains regulation continuity across 0–1 A load range without external intervention. |
| 100% duty-cycle operation | Enables regulation down to VIN ≈ VOUT + (IOUT × RDS(on_HS) + IOUT × RL), extending usable battery life in Li-ion applications until ~3.0 V. |
| Integrated protection suite | Includes overcurrent limiting (1.45–2.45 A forward limit), thermal shutdown (160°C), UVLO (2.7 V with hysteresis), and short-circuit recovery without latch-off. |
| Low-noise, high-efficiency operation | Achieves >90% efficiency at 500 mA (12 V → 3.3 V) and <20 mVpp output ripple with 22 µF ceramic output capacitor due to 2.25 MHz switching. |
Applications
| Mobile PC Core Supply | Li-ion Battery-Powered Camera |
|---|---|
|
Use Scenario: Powers ARM-based application processor core rail (1.2 V @ 800 mA) from single-cell Li-ion (3.0–4.2 V). IC Role / Device Role / Timing Role: Primary buck regulator delivering tightly regulated core voltage with fast load-step response to CPU DVFS transitions. Use Value: DCS-Control™ ensures <50 µs recovery from 80% load step; 17 µA quiescent current minimizes standby drain; 100% duty cycle sustains operation down to 3.0 V battery voltage. |
Use Scenario: Generates 3.3 V for image sensor and ISP from two-series Li-ion (6–8.4 V), replacing discrete LDO + linear regulator chain. IC Role / Device Role / Timing Role: High-efficiency POL converter enabling compact camera module design with minimal thermal rise during burst capture. Use Value: 2.25 MHz switching allows 2.2 µH inductor and 22 µF ceramic output cap; >92% efficiency at 600 mA reduces heat in sealed enclosure; PG signal synchronizes sensor initialization. |
| Industrial PLC I/O Module | 12-V Rail Point-of-Load Converter |
|
Use Scenario: Supplies 5.0 V to isolated RS-485 transceivers and microcontroller peripherals from 24-V industrial bus via intermediate 12-V rail. IC Role / Device Role / Timing Role: Robust secondary-stage buck converter handling wide input variation (9–16 V) and EMI-rich factory environments. Use Value: Input range 3–17 V accommodates 12-V rail tolerance; thermal shutdown and short-circuit protection ensure field reliability; VOS pin improves regulation under cable-drop conditions. |
Use Scenario: Converts standard 12-V backplane supply to 1.8 V for FPGA configuration bank in telecom baseband board. IC Role / Device Role / Timing Role: High-density, low-noise POL regulator meeting tight FPGA VCCINT ripple specs (<20 mVpp) and sequencing requirements. Use Value: 2.25 MHz switching avoids interference with RF sections; FB+VOS dual-sense architecture achieves ±1.5% total output accuracy; EN pin enables synchronized startup with other rails. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62161DGKR | Fixed 1.8 V output; no FB resistor network required; identical pinout, package, and DCS-Control™ architecture. | Simplifies BOM and layout where 1.8 V is fixed requirement; eliminates feedback divider but forfeits adjustability. | Select TPS62161DGKR when output voltage is static and board space is constrained - same thermal profile and efficiency curve. |
| TPS62170DGKR | Same 3–17 V input, 1-A rating, and VSSOP-8 package; uses voltage-mode control (not DCS-Control™); lower IQ (15 µA) but slower transient response. | Lacks seamless PSM transition and VOS pin; less suitable for fast-dynamic loads like processors or RF modems. | Choose TPS62170DGKR only if cost sensitivity outweighs transient performance needs and DCS-Control™ advantages are non-critical. |
Compared with TPS62160DGKR, TPS62161DGKR offers plug-and-play 1.8 V regulation with identical footprint and thermal behavior, while TPS62170DGKR trades DCS-Control™ responsiveness for marginally lower quiescent current and simpler compensation - making TPS62160DGKR optimal for dynamically loaded, space-limited, battery-sensitive designs.
Availability
TPS62160DGKR is available at Aetrix Electronics and suitable for mobile PCs, battery-powered imaging systems, industrial PLC I/O modules, and 12-V point-of-load applications requiring stable component supply, long-term lifecycle support, and consistent parametric performance.
Supply support for TPS62160DGKR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and power management technologies, with decades of expertise in high-reliability DC/DC conversion and automotive-grade power solutions.
The TPS6216x product line was engineered specifically for high-power-density, battery-sensitive applications demanding ultrafast transient response, low quiescent current, and seamless light-load efficiency - targeting portable computing, imaging, and industrial edge devices.
FAQ
What is the recommended input capacitor for TPS62160DGKR?
The TPS62160DGKR datasheet specifies a minimum 10 µF X5R/X7R ceramic capacitor placed as close as possible to the VIN and PGND pins. This capacitor stabilizes the input rail during high-frequency switching events and supplies peak inductor current. For improved EMI performance and hold-up time, a parallel 1 µF ceramic capacitor is also recommended. The capacitor must be rated for ≥20 V DC and exhibit low ESL/ESR to maintain stability across the 2.25 MHz switching frequency.
Does TPS62160DGKR support pre-biased output startup?
Yes, the TPS62160DGKR supports monotonic pre-biased startup. During startup into a pre-charged output, the internal low-side MOSFET remains off until the internal control ramp exceeds the existing output voltage, preventing reverse current flow and ensuring monotonic VOUT rise. This capability is confirmed in the device's functional description and validated in typical application waveforms (Figure 30–31 of SLVSAM2E), making TPS62160DGKR suitable for hot-swap and multi-rail sequencing scenarios.
What is the purpose of the VOS pin on TPS62160DGKR?
The VOS (Voltage Output Sense) pin on TPS62160DGKR provides direct feedback of the actual output voltage at the capacitor terminals, bypassing PCB trace resistance and improving load regulation accuracy - especially under high-current or high-PCB-impedance conditions. It works in conjunction with the FB pin to enhance transient response and reduce output deviation caused by IR drop. TI recommends connecting VOS directly to the output capacitor's positive terminal for optimal performance.
Can TPS62160DGKR operate with an input voltage below 3 V?
No, the TPS62160DGKR has a guaranteed operating input range of 3 V to 17 V per its Recommended Operating Conditions. Below 3 V, the device enters undervoltage lockout (UVLO) and disables switching; the UVLO falling threshold is specified at 2.6–2.82 V with 180 mV hysteresis. Attempting operation below 3 V risks unstable regulation, failure to start, or uncontrolled dropout - therefore, TPS62160DGKR is unsuitable for single NiMH or alkaline cell applications without a boost pre-regulator.
How does the power good (PG) signal behave during thermal shutdown?
During thermal shutdown, the TPS62160DGKR drives the PG pin into high-impedance state - identical to its behavior during EN disable or UVLO. This is explicitly defined in Table 1 of the datasheet: when TJ exceeds 160°C, both power switches turn off and PG becomes high-Z, removing any pull-down assertion. System designers must use an external pull-up resistor to define the logic-high level and interpret high-Z as a fault condition requiring thermal mitigation or reset.
TPS62160DGKR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- DCS-Control™
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3V
- Voltage - Input (Max):
- 17V
- Voltage - Output (Min/Fixed):
- 0.9V
- Voltage - Output (Max):
- 6V
- Current - Output:
- 1A
- Frequency - Switching:
- 2.25MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
TPS62160DGKR FAQ
1.How can I place an order for TPS62160DGKR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62160DGKR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TPS62160DGKR reliable?
The price and inventory of TPS62160DGKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62160DGKR is usually 5 days.
3.What payment methods are accepted for TPS62160DGKR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62160DGKR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62160DGKR?
TPS62160DGKR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62160DGKR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TPS62160DGKR?
For technical support, including TPS62160DGKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62160DGKR requirements.
6.How does Aetrix verify that TPS62160DGKR is sourced from the original manufacturer or authorized distributors?
All TPS62160DGKR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TPS62160DGKR meets industry standards.
7.What is the process for return or replacement of TPS62160DGKR?
All TPS62160DGKR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62160DGKR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TPS62160DGKR part is unused and in its original packaging.
Return procedure for TPS62160DGKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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